Mechanism of Permeability Evolution for Reservoir Sandstone with Different Physical Properties

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2018/5327895/figures/5327895.fig.007a.svgz" name="5327895.fig.007a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Sandstone without mud under confining pressure 6 MPa</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2018/5327895/figures/5327895.fig.007b.svgz" name="5327895.fig.007b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Sandstone with mud under confining pressure 6 MPa</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2018/5327895/figures/5327895.fig.007c.svgz" name="5327895.fig.007c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Sandstone without mud under confining pressure 15 MPa</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2018/5327895/figures/5327895.fig.007d.svgz" name="5327895.fig.007d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Sandstone with mud under confining pressure 15 MPa</td></tr></table>

<div>Permeability evolution of two sandstones considering different permeable pressure and confining pressure.</div>

Geofluids

fig7

Figure 7

Figure 7: Mechanism of Permeability Evolution for Reservoir Sandstone with Different Physical Properties 